Valve



FIG. 1 is a perspective view of a valve as viewed from the front;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The broken line shown in the figures are included for the purpose of illustrating elements of the valve and form no part of the claimed design. 

CLAIM The ornamental design for a valve, as shown and described. 